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      <ActivityOrMissionDesc>The American Academy of Neurology Institute (AANI) provides top-tier education and scientific programming to its members and the broader medical community. The Academy is dedicated to the concept of lifelong learning and providing education opportunities that respond to members' needs over the course of their careers. The American Academy of Neurology is the world's largest association of neurologists and neuroscience professionals, with over 40,000 members. The AAN is dedicated to promoting the highest quality patient-centered neurologic care. A neurologist is a doctor with specialized training in diagnosing, treating, and managing disorders of the brain and nervous system such as Alzheimer's disease, stroke, migraine, multiple sclerosis, concussion, Parkinson's disease, and epilepsy.</ActivityOrMissionDesc>
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      <Desc>Annual Meeting and Regional Conferences: As the AANI continued to respond to the disruptions caused by the pandemic, the Academy continued to offer a variety of continuing education programs virtually and via online learning. To help accommodate member needs, the 2022 Annual Meeting was a hybrid experience, with a six-day in-person meeting in Seattle and a three-day all-virtual counterpart offered three weeks later. Given the success of Annual Meeting On Demand, on-demand content was made available for all conferences, allowing the AANI to reach learners on a global level as well as providing continued access to meeting content throughout the year. The value of these on-demand offerings has been appreciated by the members and supports the mission of the Academy. A new hybrid Summer Conference focused on Autoimmune Neurology and Neurology Year in Review was presented to attendees in person and online. The hybrid Fall Conference included pre-conferences for advanced practice providers and people interested in sports concussion. All events were well attended. The inaugural AAN Brain Health Summit was held on September 15 in Washington, DC, convening together leading experts, key public and private sector stakeholders, and policy makers in the United States to shape the future of care, discuss brain health over the lifespan, and outline research, education, and advocacy needs. In conjunction with the summit, the AAN worked with US Representatives Earl Blumenauer (D-OR) and Morgan Griffith (R-VA) to introduce a resolution to designate September 15, 2022, as "National Brain Health Day." According to the resolution, the purpose of National Brain Health Day is to increase public awareness of brain health and support efforts to study and develop better treatments to improve brain health.</Desc>
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        <Desc>Clinical Practice and Guidelines: The Centers for Medicare &amp; Medicaid Services (CMS) continued to approve the Axon Registry(R) as a qualified clinical data registry. This designation opens the door for Academy members looking for a better way to submit quality data to CMS for the Merit-based Incentive Payment System (MIPS). The Axon Registry also is approved by the American Board of Psychiatry and Neurology (ABPN) as a Continuing Certification Part IV Improvement in Medical Practice Clinical Module activity, and participation in the Axon Registry waives up to eight hours of Part II Self-assessment. The AANI continues to address areas of controversy and importance in its evidence-based guidelines program. There are currently 11 active projects at various stages of development, and the AANI is participating in several collaborations with our neurology partners for subspecialty-related guidelines. To help members provide optimal care for their patients, the Academy published two guidelines during the year: "Stroke Prevention in Symptomatic Large Artery Intracranial Atherosclerosis-Practice Advisory" - "Aducanumab Use in Symptomatic Alzheimer's Disease-Evidence in Focus." Work started on the management of functional seizures guideline, and protocol was posted for public comment.</Desc>
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        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Joseph I Sirven MD FAAN</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <AverageHoursPerWeekRt>1</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>1850</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Brenda Banwell MD FAAN</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <AverageHoursPerWeekRt>1</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>1</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>1650</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Sarah M Benish MD FAAN</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <AverageHoursPerWeekRt>1</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>1</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>850</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Wayne E Anderson DO FAHS FAAN</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <AverageHoursPerWeekRt>1</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>1</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Charles C Flippen II MD FAAN</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <AverageHoursPerWeekRt>1</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>1</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Charlene Gamaldo MD FAAN</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <AverageHoursPerWeekRt>1</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>1</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>James N Goldenberg MD FAAN</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <AverageHoursPerWeekRt>1</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>1</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Larry B Goldstein MD FAHA FAAN</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <AverageHoursPerWeekRt>1</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>1</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Lily Jung Henson MD MMM FAAN</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <AverageHoursPerWeekRt>1</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>1</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Jonathan P Hosey MD FAAN</PersonNm>
        <TitleTxt>Secretary/Treasurer</TitleTxt>
        <AverageHoursPerWeekRt>1</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Lyell K Jones Jr MD FAAN</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <AverageHoursPerWeekRt>1</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Shannon M Kilgore MD FAAN</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <AverageHoursPerWeekRt>1</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>1</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Brett M Kissela MD MS FAAN</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <AverageHoursPerWeekRt>1</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>1</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Jose G Merino MD MPhil FAHA FAAN</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <AverageHoursPerWeekRt>1</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>1</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Natalia Rost MD MPH FAHA FAAN</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <AverageHoursPerWeekRt>1</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <TotalReportableCompFromOrgAmt>8800</TotalReportableCompFromOrgAmt>
      <TotReportableCompRltdOrgAmt>2986647</TotReportableCompRltdOrgAmt>
      <TotalOtherCompensationAmt>306241</TotalOtherCompensationAmt>
      <IndivRcvdGreaterThan100KCnt>21</IndivRcvdGreaterThan100KCnt>
      <FormerOfcrEmployeesListedInd>1</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>1</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>0</CompensationFromOtherSrcsInd>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>American Academy of Neurology</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>201 Chicago Avenue</AddressLine1Txt>
            <CityNm>Minneapolis</CityNm>
            <StateAbbreviationCd>MN</StateAbbreviationCd>
            <ZIPCd>55415</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>Services of Shared Employees</ServicesDesc>
        <CompensationAmt>3564436</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>Encore Group (USA) LLC</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>23918 Network Pl</AddressLine1Txt>
            <CityNm>Chicago</CityNm>
            <StateAbbreviationCd>IL</StateAbbreviationCd>
            <ZIPCd>606731239</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>Audio Visual Services and Equipment for Conferences</ServicesDesc>
        <CompensationAmt>2759493</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>Washington State Convention Center PFD</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>705 Pike St</AddressLine1Txt>
            <CityNm>Seattle</CityNm>
            <StateAbbreviationCd>WA</StateAbbreviationCd>
            <ZIPCd>98101</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>Food &amp; Beverage and Convention Services</ServicesDesc>
        <CompensationAmt>1913344</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>Freeman Decorating Co</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>PO Box 650036</AddressLine1Txt>
            <CityNm>Dallas</CityNm>
            <StateAbbreviationCd>TX</StateAbbreviationCd>
            <ZIPCd>752650036</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>Decorating Services</ServicesDesc>
        <CompensationAmt>728294</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>Kenes International Organizers of Congress Ltd</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <ForeignAddress>
            <AddressLine1Txt>26 Harokmim St</AddressLine1Txt>
            <AddressLine2Txt>Bldg D POB 11</AddressLine2Txt>
            <CityNm>Holon</CityNm>
            <CountryCd>IC</CountryCd>
            <ForeignPostalCd>5885849</ForeignPostalCd>
          </ForeignAddress>
        </ContractorAddress>
        <ServicesDesc>2021 Virtual Annual Meeting Platform</ServicesDesc>
        <CompensationAmt>356759</CompensationAmt>
      </ContractorCompensationGrp>
      <CntrctRcvdGreaterThan100KCnt>16</CntrctRcvdGreaterThan100KCnt>
      <FederatedCampaignsAmt>0</FederatedCampaignsAmt>
      <MembershipDuesAmt>0</MembershipDuesAmt>
      <FundraisingAmt>0</FundraisingAmt>
      <RelatedOrganizationsAmt>755521</RelatedOrganizationsAmt>
      <GovernmentGrantsAmt>0</GovernmentGrantsAmt>
      <AllOtherContributionsAmt>12976302</AllOtherContributionsAmt>
      <NoncashContributionsAmt>0</NoncashContributionsAmt>
      <TotalContributionsAmt>13731823</TotalContributionsAmt>
      <ProgramServiceRevenueGrp>
        <Desc>Conference/Educational Fees</Desc>
        <BusinessCd>541990</BusinessCd>
        <TotalRevenueColumnAmt>12969343</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>12969343</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>0</ExclusionAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>Products/Publications</Desc>
        <BusinessCd>511120</BusinessCd>
        <TotalRevenueColumnAmt>4764239</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>4764239</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>0</ExclusionAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>Management/Access Fee</Desc>
        <BusinessCd>561000</BusinessCd>
        <TotalRevenueColumnAmt>1574730</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>1574730</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>0</ExclusionAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>Dues</Desc>
        <BusinessCd>541900</BusinessCd>
        <TotalRevenueColumnAmt>1690000</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>1690000</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>0</ExclusionAmt>
      </ProgramServiceRevenueGrp>
      <TotalOthProgramServiceRevGrp>
        <TotalRevenueColumnAmt>0</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>0</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>0</ExclusionAmt>
      </TotalOthProgramServiceRevGrp>
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      <InvestmentIncomeGrp>
        <TotalRevenueColumnAmt>1321499</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>0</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>1321499</ExclusionAmt>
      </InvestmentIncomeGrp>
      <IncmFromInvestBondProceedsGrp>
        <TotalRevenueColumnAmt>0</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>0</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>0</ExclusionAmt>
      </IncmFromInvestBondProceedsGrp>
      <RoyaltiesRevenueGrp>
        <TotalRevenueColumnAmt>2310592</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>0</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>2310592</ExclusionAmt>
      </RoyaltiesRevenueGrp>
      <RentalIncomeOrLossGrp>
        <RealAmt>0</RealAmt>
        <PersonalAmt>0</PersonalAmt>
      </RentalIncomeOrLossGrp>
      <GrossAmountSalesAssetsGrp>
        <SecuritiesAmt>24698953</SecuritiesAmt>
        <OtherAmt>0</OtherAmt>
      </GrossAmountSalesAssetsGrp>
      <LessCostOthBasisSalesExpnssGrp>
        <SecuritiesAmt>25810057</SecuritiesAmt>
        <OtherAmt>0</OtherAmt>
      </LessCostOthBasisSalesExpnssGrp>
      <GainOrLossGrp>
        <SecuritiesAmt>-1111104</SecuritiesAmt>
        <OtherAmt>0</OtherAmt>
      </GainOrLossGrp>
      <NetGainOrLossInvestmentsGrp>
        <TotalRevenueColumnAmt>-1111104</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>0</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>-1111104</ExclusionAmt>
      </NetGainOrLossInvestmentsGrp>
      <ContriRptFundraisingEventAmt>0</ContriRptFundraisingEventAmt>
      <GrossSalesOfInventoryAmt>96000</GrossSalesOfInventoryAmt>
      <CostOfGoodsSoldAmt>0</CostOfGoodsSoldAmt>
      <NetIncomeOrLossGrp>
        <TotalRevenueColumnAmt>96000</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>96000</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>0</ExclusionAmt>
      </NetIncomeOrLossGrp>
      <OtherRevenueMiscGrp>
        <Desc>Miscellaneous Revenue</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>504104</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>504104</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>0</ExclusionAmt>
      </OtherRevenueMiscGrp>
      <MiscellaneousRevenueGrp>
        <TotalRevenueColumnAmt>0</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>0</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>0</ExclusionAmt>
      </MiscellaneousRevenueGrp>
      <OtherRevenueTotalAmt>504104</OtherRevenueTotalAmt>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>37851226</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>21598416</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>2520987</ExclusionAmt>
      </TotalRevenueGrp>
      <GrantsToDomesticOrgsGrp>
        <TotalAmt>7932256</TotalAmt>
        <ProgramServicesAmt>7932256</ProgramServicesAmt>
      </GrantsToDomesticOrgsGrp>
      <GrantsToDomesticIndividualsGrp>
        <TotalAmt>97200</TotalAmt>
        <ProgramServicesAmt>97200</ProgramServicesAmt>
      </GrantsToDomesticIndividualsGrp>
      <ForeignGrantsGrp>
        <TotalAmt>473500</TotalAmt>
        <ProgramServicesAmt>473500</ProgramServicesAmt>
      </ForeignGrantsGrp>
      <CompCurrentOfcrDirectorsGrp>
        <TotalAmt>8800</TotalAmt>
        <ProgramServicesAmt>8800</ProgramServicesAmt>
      </CompCurrentOfcrDirectorsGrp>
      <OtherSalariesAndWagesGrp>
        <TotalAmt>7061579</TotalAmt>
        <ProgramServicesAmt>6403427</ProgramServicesAmt>
        <ManagementAndGeneralAmt>658152</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
      </OtherSalariesAndWagesGrp>
      <PensionPlanContributionsGrp>
        <TotalAmt>623852</TotalAmt>
        <ProgramServicesAmt>565708</ProgramServicesAmt>
        <ManagementAndGeneralAmt>58144</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
      </PensionPlanContributionsGrp>
      <OtherEmployeeBenefitsGrp>
        <TotalAmt>1023812</TotalAmt>
        <ProgramServicesAmt>928391</ProgramServicesAmt>
        <ManagementAndGeneralAmt>95421</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
      </OtherEmployeeBenefitsGrp>
      <PayrollTaxesGrp>
        <TotalAmt>515820</TotalAmt>
        <ProgramServicesAmt>467745</ProgramServicesAmt>
        <ManagementAndGeneralAmt>48075</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
      </PayrollTaxesGrp>
      <FeesForServicesManagementGrp>
        <TotalAmt>3564442</TotalAmt>
        <ProgramServicesAmt>3233826</ProgramServicesAmt>
        <ManagementAndGeneralAmt>330616</ManagementAndGeneralAmt>
      </FeesForServicesManagementGrp>
      <FeesForServicesLegalGrp>
        <TotalAmt>44476</TotalAmt>
        <ProgramServicesAmt>21000</ProgramServicesAmt>
        <ManagementAndGeneralAmt>23476</ManagementAndGeneralAmt>
      </FeesForServicesLegalGrp>
      <FeesForServicesAccountingGrp>
        <TotalAmt>25119</TotalAmt>
        <ManagementAndGeneralAmt>25119</ManagementAndGeneralAmt>
      </FeesForServicesAccountingGrp>
      <FeesForSrvcInvstMgmntFeesGrp>
        <TotalAmt>71652</TotalAmt>
        <ManagementAndGeneralAmt>71652</ManagementAndGeneralAmt>
      </FeesForSrvcInvstMgmntFeesGrp>
      <FeesForServicesOtherGrp>
        <TotalAmt>2439844</TotalAmt>
        <ProgramServicesAmt>1747414</ProgramServicesAmt>
        <ManagementAndGeneralAmt>692430</ManagementAndGeneralAmt>
      </FeesForServicesOtherGrp>
      <AdvertisingGrp>
        <TotalAmt>194789</TotalAmt>
        <ProgramServicesAmt>194789</ProgramServicesAmt>
      </AdvertisingGrp>
      <InformationTechnologyGrp>
        <TotalAmt>1432613</TotalAmt>
        <ProgramServicesAmt>1010079</ProgramServicesAmt>
        <ManagementAndGeneralAmt>422534</ManagementAndGeneralAmt>
      </InformationTechnologyGrp>
      <OccupancyGrp>
        <TotalAmt>1158771</TotalAmt>
        <ManagementAndGeneralAmt>1158771</ManagementAndGeneralAmt>
      </OccupancyGrp>
      <TravelGrp>
        <TotalAmt>1229675</TotalAmt>
        <ProgramServicesAmt>1228105</ProgramServicesAmt>
        <ManagementAndGeneralAmt>1570</ManagementAndGeneralAmt>
      </TravelGrp>
      <ConferencesMeetingsGrp>
        <TotalAmt>7795048</TotalAmt>
        <ProgramServicesAmt>7795048</ProgramServicesAmt>
      </ConferencesMeetingsGrp>
      <DepreciationDepletionGrp>
        <TotalAmt>695763</TotalAmt>
        <ProgramServicesAmt>122302</ProgramServicesAmt>
        <ManagementAndGeneralAmt>573461</ManagementAndGeneralAmt>
      </DepreciationDepletionGrp>
      <InsuranceGrp>
        <TotalAmt>108965</TotalAmt>
        <ProgramServicesAmt>108965</ProgramServicesAmt>
      </InsuranceGrp>
      <OtherExpensesGrp>
        <Desc>Dues and Subscriptions</Desc>
        <TotalAmt>29360</TotalAmt>
        <ProgramServicesAmt>29160</ProgramServicesAmt>
        <ManagementAndGeneralAmt>200</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>Stipends / Honoraria</Desc>
        <TotalAmt>474225</TotalAmt>
        <ProgramServicesAmt>474225</ProgramServicesAmt>
        <ManagementAndGeneralAmt>0</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
      </OtherExpensesGrp>
      <AllOtherExpensesGrp>
        <TotalAmt>-108125</TotalAmt>
        <ProgramServicesAmt>-108125</ProgramServicesAmt>
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        <PersonNm>Jason Kopinski</PersonNm>
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        <PersonNm>John Hutchins</PersonNm>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Kevin Myren</PersonNm>
        <TitleTxt>Chief Financial Officer</TitleTxt>
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        <CompensationBasedOnRltdOrgsAmt>258432</CompensationBasedOnRltdOrgsAmt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Sukhjeet Ahuja</PersonNm>
        <TitleTxt>Chief Health Policy Officer</TitleTxt>
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        <CompensationBasedOnRltdOrgsAmt>240563</CompensationBasedOnRltdOrgsAmt>
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        <PersonNm>Orly Avitzur MD MBA FAAN</PersonNm>
        <TitleTxt>Chair</TitleTxt>
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        <CompensationBasedOnRltdOrgsAmt>264463</CompensationBasedOnRltdOrgsAmt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Kelly Ricker</PersonNm>
        <TitleTxt>Chief Learning Officer</TitleTxt>
        <BaseCompensationFilingOrgAmt>0</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>180340</CompensationBasedOnRltdOrgsAmt>
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        <OtherCompensationRltdOrgsAmt>1066</OtherCompensationRltdOrgsAmt>
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        <TotalCompensationFilingOrgAmt>0</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>206781</TotalCompensationRltdOrgsAmt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Schedule J, Part II</FormAndLineReferenceDesc>
        <ExplanationTxt>The Academy's Board utilizes a Compensation Committee to set the compensation for the CEO; that Committee employs the procedures inquired here and last set of compensation set in 2021. The CEO is charged with setting compensation for the employed Officers and Key Employees and in doing so, compensation surveys are utilized. The Committee reviews comprehensive market studies every 2-3 years and will make market adjustments accordingly. Annual salary adjustments are made as performance warrants. The last market adjustment was made in 2021.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, Line 1a</FormAndLineReferenceDesc>
        <ExplanationTxt>Under the AAN and AAN Institute Bylaws, the Boards of Directors have the power and responsibility to manage all the business and affairs of the Academy. The Boards have the final responsibility and authority for all actions and policies that are recommended or adopted by any and all committees, sections, representatives to professional and governmental organizations, agents, and employees, unless the Board has specifically delegated its authority and that delegation is stated in the Board's minutes. In this context of the Boards' authority, the roles and responsibilities of the Executive Committee, the President and Board Planning Committee are clarified as follows: the Executive Committee is a committee formally established separately by the AAN and AAN Institute bylaws (AAN Article V, Section 8 and AANI Article V, Section 7) to which the Board's power is specifically delegated between meetings of the Board of Directors. The actions of the Executive Committee must be reported to the next meeting of the Board of Directors. The AAN Executive Committee includes the President, President-Elect, Treasurer and at least two other members from the Board of Directors appointed by the President, and the Executive Director, ex officio. The AANI Executive Committee includes the Chair, Chair Elect, Treasurer-Secretary and at least two other members from the Board of Directors appointed by the Chair.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, Line 2</FormAndLineReferenceDesc>
        <ExplanationTxt>Most Officers and Key Employees of the corporation have a business relationship with filer's Board members and other Officers as all of these individuals concomitantly served as Directors and/or Officers of filer's parent 501(c)(6) organization, American Academy of Neurology (AAN), and these Officers and Key employees are paid by AAN.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, Line 6</FormAndLineReferenceDesc>
        <ExplanationTxt>American Academy of Neurology 501c6 is the sole voting member of the organization.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, Line 7a</FormAndLineReferenceDesc>
        <ExplanationTxt>The AANI 501c3 board includes the officers and the nine elected directors of the AAN 501c6 as ex officio voting members, in addition to other AANI directors.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, Line 11b</FormAndLineReferenceDesc>
        <ExplanationTxt>The CFO undertook extensive review the draft Form 990 as initially prepared by the Senior Finance Manager. Their review was thereafter augmented by an exempt organizations Tax Professional. The Form 990 was then presented to the Audit Committee by the CFO and other members of the management team. The Audit Committee reviewed the Form 990 and identified any agreed upon changes to be made. In line with Minnesota Law, the final Form 990 was brought to the Board for discussion and approval (as required by state law) at a regularly scheduled meeting. The Form is then filed after this process.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, Line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>AANI's conflict of interest policy covers individuals serving as an officer, director, committee member, or positions of official responsibility or leadership. All covered individuals are required to complete a relationship disclosure statement annually, or as changes in personal circumstances occur. The statements are reviewed, and actions determined according to the AANI's hierarchy based on position and recommendation of General Counsel; or by the Executive Committee if a resolution cannot be made. Potential conflicts are handled on an individual basis. Actions taken depend on the severity of the conflict which include no action required, on-going monitoring with appropriate disclosure, or withdrawal from the conflicting relationship. Conflict of interest proceedings are documented in meeting minutes or as appropriate.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section C, Line 18</FormAndLineReferenceDesc>
        <ExplanationTxt>Form 1023 is not available, organization established in 1948. 990's are available on AAN.com. 990T that are open to public inspection are available upon request.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section C, Line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>AANI makes its governing documents, conflict of interest policy, and financial statements available to its parent entity's members on its website AAN.com.</ExplanationTxt>
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          <BusinessNameLine1Txt>American Academy of Neurology</BusinessNameLine1Txt>
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        <InvolvedAmt>9225064</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>Sharing of employees. The Parent AAN houses all AANI employees who are co-employed and is reimbursed at fair market value.</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
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          <BusinessNameLine1Txt>American Academy of Neurology</BusinessNameLine1Txt>
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        <InvolvedAmt>3564436</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>Finance, HR, IT, Marketing FMV recovered per resource allocation agreement.</MethodOfAmountDeterminationTxt>
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      <ExplanationTxt>Form 8860 Application for Extension was filed and accepted by IRS on February 23, 2023. Filing Due November 15, 2023.</ExplanationTxt>
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